---
product_id: 87889102
title: "12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS"
brand: "hobby homebrew"
price: "760696₫"
currency: VND
in_stock: true
reviews_count: 4
url: https://www.desertcart.vn/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic
store_origin: VN
region: Vietnam
---

# Superior sealing 28/400 CT Reusable design 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS

**Brand:** hobby homebrew
**Price:** 760696₫
**Availability:** ✅ In Stock

## Summary

> Seal the Deal! 🔒

## Quick Answers

- **What is this?** 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS by hobby homebrew
- **How much does it cost?** 760696₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic)

## Best For

- hobby homebrew enthusiasts

## Why This Product

- Trusted hobby homebrew brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Choice:** Reusable caps that contribute to a sustainable lifestyle.
- • **Rust-Resistant Design:** Say goodbye to rust; these caps maintain their integrity over time.
- • **Unmatched Sealing Power:** Experience superior torque retention with our Poly-Seal cone liner.
- • **Versatile Compatibility:** Perfectly fits USA 28/400 continuous thread bottles, including wine and Boston rounds.
- • **Durable Phenolic Material:** Crafted from high-quality black phenol, ensuring longevity and reliability.

## Overview

The 12PK Polyseal Screw Caps are heavy-duty black phenolic caps designed to fit USA 28/400 continuous thread bottles. Featuring a conical polyethylene liner for superior sealing and torque retention, these caps are reusable and rust-resistant, making them an ideal choice for wine bottles and Boston rounds.

## Description

12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS

## Features

- A Heavy Duty Black Phenolic Screw Cap to fit USA Size 28/400 Continuous Thread Bottles
- Poly-Seal Caps Feature a Conical Polyethylene Liner with superior torque retention and excellent sealing characteristics
- Black Phenol is a Plastic Similar to Bakelite
- Reusable and will seal our USA 28/400 CT screw-top finish wine bottles
- Will not rust over time. Rib pattern may vary.

## Images

![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 1](https://m.media-amazon.com/images/I/617iwUGDQsS.jpg)

## Questions & Answers

**Q: will these fit 28 fl oz bottles?**
A: There are many different 28 fl bottles. These are 28mm and 400 thread. You need to know what the diameter and the thread are on your bottles

**Q: Will these fit a standard 750 ml screw-top wine bottle?**
A: Yes but it will not fit on any screw top bottles from wineries.

**Q: What type of plastic is the black outer screw cap made of?**
A: Phenolic

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Didn't fit the bottles I had.
  

*by D***E on Reviewed in the United States on November 3, 2023*

These caps were as discribed, they came quickly. Even tho they didn't fit the company took them back hassle free. Great co.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Seals well
  

*by A***R on Reviewed in the United States on November 17, 2021*

Better than others I tried.

### ⭐ 1.0 out of 5 stars







  
  
    Doesn’t fit recycled wine bottles
  

*by A***R on Reviewed in the United States on October 14, 2023*

I feel like it’s misleading to infer that these work for wine bottles - THEY DONT.

## Frequently Bought Together

- 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS
- North Mountain Supply 28mm Gold Metal Screw Caps with Plastisol Liner - Pack of 15 Leak Proof Lids

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**Shop now:** [https://www.desertcart.vn/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic](https://www.desertcart.vn/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-24*